为了方便全局的使用，建议写到工具类中，如果只是单单的查询授权可以基于UIApplication写一个分类；如下：
#import <UIKit/UIKit.h>
#import <Photos/Photos.h>
#import <AVFoundation/AVCaptureDevice.h>
#import <AVFoundation/AVMediaFormat.h>
@interface UIApplication (GetRight)
/**
* 获取相机的授权
* @return YES/NO
*/
- (BOOL)getCameraRight;
/**
* 获取相册的授权
* @return YES/NO
*/
- (BOOL)getAlbumRight;
@end
#import "UIApplication+ GetRight.h"
@implementation UIApplication (GetRight)
#pragma mark - 相机授权
- (BOOL)getCameraRight {
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
if (authStatus == AVAuthorizationStatusRestricted || authStatus ==AVAuthorizationStatusDenied) {
return NO;
} else {
return YES;
}
}
#pragma mark - 相册授权
- (BOOL)getAlbumRight{
PHAuthorizationStatus author = [PHPhotoLibrary authorizationStatus];
if (author == PHAuthorizationStatusRestricted || author == PHAuthorizationStatusDenied) {
return NO;
}else{
return YES;
}
}
@end
使用：
if ([[UIApplication sharedApplication] getCameraRight]) {
NSLog(@"用户允许访问相机");
} else {
NSLog(@"没有权限");
}
}
if ([[UIApplication sharedApplication] getAlbumRight]) {
NSLog(@"用户允许访问相册");
} else {
NSLog(@"没有权限");
}
}
注：如果编译工具是Xcode8,请在info.plist中添加如下两个key:
- Privacy - Camera Usage Description
- Privacy - Photo Library Usage Description
屏幕快照 2016-12-02 下午1.55.58.png
